Security Update 2010-003 (Leopard-Client)
Security Update 2010-003 is recommended for all users and improves the shield of Mac OS X. Previous defense updates have been incorporated into that defense update.
For knowledge on the defense substance of that update, please visit that website: http://support.apple.com/kb/HT1222.
SHA 1 digest = 3f82f68f5a96a0c103fcc3ad88da9451b48def08
For explanation of what a SHA1 digest is, please visit that website: About SHA1 digest
Orginal post by Mike